Marsupials are found in North America and Australia, but they would not have been able to swim across the ocean. According to scientists, how did this group of organisms come to live on two separate continents
Marsupials come to live on two separate continents when both continents were attached to each other.
What is the reason for the presence of Marsupials?Marsupials are the group of organisms that come to live on two separate continents a long time ago when both continents i.e. North America and Australia were joined or attached to each other. The supercontinent named Pangea began to break apart about 200 million years ago which results in the formation of continents.
Before this is broken, the Marsupials move to the Australian part from the North American part so we can conclude that Marsupials come to live on two separate continents when both the continents were attached to each other.
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Sugar is obtained from which plant
ANSWER
sugar cane, and sugar beets
Explanation:
sugar . It can be extracted from the above plants(sugarcane,sugar beets).it can as well as be obtained in a labatory. But labatory sugar isn't fit for consumption!
Answer:
Sugar cane and sugar beets
Plants are the major source of what blochemical needed in your diet? What specifically is this blochemical used for, and
how is it broken down during digestion?
Explanation:
it is broken down when you have some rest after eating e.g reading a novel
what type of nitrate helps algae grow?
Answer:
potassium nitrate (KNO3)
Explanation:
The most abundant element in the atmosphere can also be found in?
white sugar and soy protein.
fruits and hydrogenated oils.
carbonated water and glucose.
beans and whey protein.
The most abundant element in the atmosphere is nitrogen and can be found in beans and whey protein. The fourth option is the correct one.
Which is the most abundant element in the atmosphere?The most abundant element in the atmosphere is nitrogen. It makes up about 78% of the air in the atmosphere.
Nitrogen is absent in white sugar (essentially consists of C, H, and O), carbonated water, and hydrogenated oils but is present in beans and whey protein.
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The most abundant element in the atmosphere can also be found in beans and whey protein. Thus, the correct option is D.
Which is the most abundant element in the atmosphere?Nitrogen is the most abundant element in the atmosphere that comprises up to 78% of the air.
Nitrogen is typically not found in fruits and hydrogenated oils, carbonated water and glucose, and white sugar and soy protein.
Therefore, the correct option for this question is D.
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Which of the following actions can be performed
by RNA? Check all that apply.
It can carry genetic information from one part
of the DNA to another.
It can unwind the DNA strand for replication.
It can block the process of transcription.
It can remove genetic information from
various parts of cells.
Answer:
a. It can carry genetic information from one part of the DNA to another.
c. It can block the process of transcription.
Explanation:
The actions that can be performed by RNA are it can carry genetic information from one part of the DNA to another, and it can block the process of transcription. The correct options are A and C.
What is RNA?All living cells contain ribonucleic acid (abbreviated RNA), a nucleic acid with properties comparable to those of DNA. However, RNA is often single-stranded, unlike DNA.
Instead of the deoxyribose found in DNA, the backbone of an RNA molecule is formed of alternating phosphate groups and sugar ribose.
RNA does the translation process which is after the transcription, so that why it blocks transcription
Therefore, the correct options are:
A. It can carry genetic information from one part of the DNA to another.
C. It can block the process of transcription.
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Which kind of evidence studies mineralized bone, footprints, or organisms trapped in amber to determine common ancestry
The energy that fuels winter storms comes from
warm ocean temperatures that release energy via latent heat
the clash of warm and cold air masses
diurnal heating of the Earth's surface
sea breeze uplift due to pressure differences
The energy that fuels winter storms comes from the clash of warm and cold air masses and is denoted as option B.
What is a Storm?This is defined as a disturbed state of the atmosphere and is characterized by lightning etc.
The energy that fuels winter storms comes from the clash of warm and cold air masses of different temperature.
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A student completed an experiment investigating the response of tomato plants to gravity and created the table below. What can you conclude from the observations? A table showing the observations in an experiment investigating how plants respond to gravity. The top row shows observations from a plant grown upright in a pot. The observations are as follows: the stem grew straight upward on day one, straight upward on day two, straight upward on day three, straight upward on day four, and straight upward on day five. The bottom row shows observations from the plant grown in a pot on its side. The observations are as follows: the stem grew straight outward on day one, it started to bend on day two, more bent on day three, bent like the letter L on day four, and continued to grow in a bent fashion on day five. Gravity does not affect the growth of a plant. Gravity has no effect on the plant grown on its side. The stem of a plant will grow downward with gravity. The stem of a plant will grow upward against gravity.
Plants respond immediately to the gravitational attraction of the Earth as well as to light. Stems develop away from the center of the Earth and toward the light due to negative gravitropism.
What is negative gravitropism?Negative gravitropism occurs when shoots develop in the opposite direction of gravity toward sunlight.
Plants respond immediately to the gravitational attraction of the Earth as well as to light. Stems develop away from the center of the Earth and toward the light due to negative gravitropism.
Thus, the given experiment shows negative gravitropism.
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Which of these is a problem
that increases as the human
population
increases?
A. the amount of Sun hitting the Earth
B. the amount of land needed to grow food
C. the salinity of the ocean
Answer:
the amount of land needed to grow food
Which of these has the highest BTU content when burned?
A: Paper
B: Plastic
C: Glass
Answer:
A. Plastic
Explanation:
The heat release rate for expanded plastics is generally greater due to the relatively low density and resulting high burning rate.
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Similar plant and animal fossils
have been found on continents
that are now separated by an
ocean. Why is this significant?
A. It gives evidence that the continents never
were connected.
B. It gives evidence that the continents used to
be connected.
C. It proves that the continents never were
connected.
D. This discovery does not help scientists in any
way.
Compare and contrast photosphere vs chromosphere
Answer:
The photosphere is about 300 km thick. Most of the Sun's visible light that we see originates from this region. · The chromosphere is about 2000 km thick.
The Sun
The Sun can be split into two regions:
The interior is a sphere with radius R = 7x108m
The atmosphere lies on top and has the following layers (from innermost to outermost):
The photosphere is about 300 km thick. Most of the Sun's visible light that we see originates from this region.
The chromosphere is about 2000 km thick. We only see this layer and the other outer layers during an eclipse.
The corona extends outwards for more than a solar radius.
The size of the atmosphere compared to the Earth.
4. Which is a
consequence of global warming?
O rise in number of glaciers
O rise in number of ice-capped mountains
O rise in sea level
O rise in fossil fuels
Answer:
3. Rise in sea level
Explanation:
As the glaciers melt the water from the melted glaciers causes the sea to rise since more water is being added. Not answer 1 or 2 because ice melts as it gets warmer.
Fluids such as oil, antifreeze, and grease from different parking lots in a city are polluting a nearby lake. this is considered _______.
A: Helpful water pollution
B: Nonpoint source pollution
C: Water pollution that has zero impact on the lake
D: Illegal
Can somebody help me with this please?
Research into nuclear fusion will likely require a large investment of time and money before it might be used as an energy source.
Which statement best describes the benefits that would make the investment worthwhile?
Fusion requires a large amount of energy and occurs in stars.
Fusion produces large amounts of energy, and the fuel is found on Earth.
Fusion produces no radioactive waste, and the fuel is plentiful.
Fusion requires little energy to begin and would continue through a chain reaction
The statement best describes the benefits that would make the investment worthwhile is Fusion produces no radioactive waste, and the fuel is plentiful, which means letter C.
What is nuclear energy?Nuclear or atomic energy is the energy produced in thermonuclear plants, which use uranium and other elements as fuel. The working principle of a nuclear power plant is the use of heat to generate electricity.
Some of the advantages of this energy is abundance of uranium, as an essential element in the production of nuclear energy and no use of fossil fuels.
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Species evolve useing what process
A evolution
B natural selection
C acquired characteristics
D surprise
Answer:
b
Explanation:
Advantage of periodic report
Answer:
The advantage of Periodic reporting is that it provides a broader view of the safety profile of a drug.
write the issues of digestive health mention briefly
A person goes to a doctor due to a loss of blood. The Doctor also noticed swollen legs and bulgy veins in the legs. On top of that the person has been feeling a little sick. They normally feel a little tired with occasional aches, but over there past week they have been really exhausted and weak. You, as the doctor, take a blood sample for a blood smear. You notice an increase inmulti-lobulated granuleocytes in the blood. You also noticed that there are many crescent shaped cells present in the blood. While you report your findings to your patient you also explain the swelling, and the bulgy veins. Explain in detail everything that is wrong or potentially wrong with this person based on the evidence.
The person is having sickle cell anemia.
-It is noticed that the person has swollen legs and bulgy veins in the legs it is due to the formation of thrombosis, which results in blocking of veins.
-The person is being feeling tired ,the reason of this tiredness is
lack of normal RBCs in blood due to which, oxygen is not able to supplied efficiently to body.
-Sickle Cell Anemia: It is group of disorders that cause red blood cells to become misshapen and break down.
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Answer: Front, When two different air masses meet, a front is formed. The boundary between these masses is called a stationary front. The air between the two masses never really combines.
For what purpose was NASA
formed by the United States in
1958?
A. building up national defense
B. repairing the country's infrastructure
C. increasing industrial efficiency
D. taking over the space program
The purpose of the formation of NASA by the United States in 1958 was D. Taking over the space program.
What was the US space program?The US space program centered on:
Solar system explorationOuter space explorationHuman spaceflightAerospace and aeronautics researchEarth science and space science.NASA was not formed for:
National defenseInfrastructure repairsIncreased industrial efficiency.Thus, NASA was formed in 1958 to oversee U.S. space exploration and aeronautics research in response to the Soviet Union's Sputnik I in 1957.
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ment forms the basis of organic
compounds?
carbon
Answer: you are right its carbon
Explanation:
A geneticist is studying a disease trying to determine how its inherited. DNA testing was completed on three generations of a family and a pedigree chart below was created based on the results fell in shape means that the person has the disease a Hatfield shape mean that the person carries the gene for the disease but does not have the disease males are often affected then females females tend to be carriers what term is the type of inheritance is this
Answer:
X-linked recessive inheritance
Explanation:
Since the disease is primarily present in males vs females, it is a s.ex linked disease.
In X-linked recessive inheritance, males tend to get disease b/c they only have one x (the other is y) which means if they get the bad "x" copy from mom then they definetely will get the disease.
Females can be carriers b/c they are XX. If they get a good copy from mom and suppose a bad copy from dad, they can still be healthy b/c the good copy is dominant. They will be carriers (cuz they have the bad copy) but themselves wont have the disease.
Explain the interaction of photosynthesis and cellular respiration using two organism and it has to be focusing on the movement of carbon?
Answer:
plants doing Photosynthesis give off oxygen for a human to use in cellular respiration vise versa
Explanation:
Name the plant tissue
The different types of plant tissues are:
1. Meristematic tissues - It is of three types: Apical, Lateral and lntercalary.
2. Permanent Tissue - It of two types: Simple and Complex tissues. Simple tissues are of three types Parenchyma, Collenchyma and Sclerenchyma.
Complex tissues are of two types - Xylem and Phloem.
Zora and Neil are learning about succession in their biology class. They decide to do their midterm project on the succession that occurred after the dinosaurs went extinct from the ice age. Neil says that the ecosystems that arose after the ice age are an example of primary succession, but Zora thinks they are an example of secondary succession. Who is correct?
Neil, because those ecosystems will be first emerging after the ice age.
Neil, because plants were the first lifeforms to take place in those ecosystems.
Zora, because secondary succession occurs when there is a catastrophic destruction to a previous ecosystem.
Zora, because secondary succession occurs when a species of animals becomes extinct.
Zora is correct because secondary succession occurs when there is a catastrophic destruction to a previous ecosystem.
What is Secondary succession?This usually follows a primary succession and occurs when there is existing presence of life forms.
This is caused by disruptions in the ecosystem such as wildfires, glaciers etc which removes only part of the soil in the area.
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Answer: The correct answer is Zora, because secondary succession occurs when there is a catastrophic destruction to a previous ecosystem.
Explanation: Confirmed correct.
What are the 4 major groups of birds?
Answer:
Strisores — nightjars, frogmouths, and other nocturnal birds, along with diurnal swifts and hummingbirds.
Columbaves — turacos, bustards, cuckoos, pigeons, sandgrouse, and mesites.
Gruiformes — cranes, rails, crakes, Sungrebe, flufftails, and others.
Aequorlitornithes — shorebirds, flamingos, grebes, gulls, tropicbirds, penguins, and other waterbirds.
Explanation:
Answer: The four important group of birds are 1. Game Birds 2. Preying Birds, 3. Perching Birds and 4. Flightless Birds.
Game birds are good runners but they cannot fly long distances. Their wings are short and round, but legs are massive. The beaks are also strongly built. Males are aggressive. One male maintains a group of 3-4 females. Game birds include partridges, pheasants, quail, grouse and pea fowls.
Preying birds are predators. They kill mice and other smaller animals and eat them. They have very strong, hook-like beak. There feet have curved and pointed claw. Their vision is very sharp. Preying birds include vultures, kites eagles and falcons.
Perching birds constitute the largest group of birds. When they sit on a tree, their digit grasp the branch of the tree in such a way that they cannot fall off the branch. Baya, larks, swallow, bulbul, finches, house sparrow, weaver-bird, crow and magpie are some common perching birds.
Flightless birds can run but they cannot fly. Flightless birds are large-sized. They generally lack tail feathers. The keel of sternum is absent. Flightless birds include ostriches, rhea, emu, kiwi, and penguin. Ostrich is the largest living bird. It weighs about 157 kg. Ostriches are very good runners. They are found in Africa and Arabia. Rhea is found in South America. It is smaller than ostrich. Emu is found in Australia. It is smaller than rhea. Kiwi is found in New Zealand. It is Southern hemisphere (Antarctica). Their body is suited for diving and swimming.
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What impact do you hope to have on the world and how will STEM play a role in making that impact, Essay pls help need ASAPPPP WILL MARK BRAINLIEST
My Answer:
I want to help my friends, family, and, of course, the rest of the world fulfill their ambitions. to overcome their fears and pursue their dreams STEM has a role in fostering creativity and divergent thinking alongside essential disciplines in schooling. It encourages and motivates young people to develop new technology and concepts. Students benefit from inquiry-based coursework because they focus on practice and innovation.